This battery is a professional-grade lithium-ion battery that offers longer run times with no gradual drop in power. Designed to make your job easier, all our batteries can be quickly swapped to keep you working. Very efficient, you will enjoy up to 25% more runtime than the standard Kobalt 80-volt battery. Charges in 40 minutes or less. Compatible with the entire Kobalt 80 Volt max family of tools. 3-year warranty.